<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Style Rules</title>
    <style>
        h1 {
            color: maroon;
        }

        body {
            background: yellow;
        }
    </style>
    <style><!--
        @import url(sheet2.css);
        h1 {
            color: maroon;
        }

        body {
            background: yellow;
        }
    --></style>
</head>
<body>

</body>
</html>